Some say the reason most manhole covers are round is that a circle cannot fall through a smaller circular hole. Which of ...

Brain teaser puzzles test the reader's critical thinking and problem-solving skills by challenging them to solve a problem.

A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging ...

First, we will understand that in this ball series puzzle, the digits are represented in binary format where a ball is 1 and a ring is 0. As you may notice that figures (b) and (c) have already once ...

Here, count with me: 1, 2, 3, 4, 5, 6, 7, 8, 9, T, 11, 12 … Oh, what’s that? You write ten with “zero”? Fair enough. Zero, we have been told, is the ...

The following is adapted from the introduction to “The Riddler: Fantastic Puzzles from FiveThirtyEight,” published by W. W. Norton & Co. It is in stores today! The world’s oldest collection of math ...

Solve Math Puzzles With Santa: It’s the Christmas season and all of us are in a festive mood. Schools have shut down for the holidays and children eagerly wait for Santa to arrive on Christmas and ...